The goal of controlling welding stress is to reduce its peak value and make it evenly distributed

1.減小焊接拘束度：盡量使焊縫在較小拘束度下焊接，盡量不用剛性固定的方法控制變形,以免增 大焊接拘束度。

1. Reduce the welding restraint: try to weld the weld under a small restraint, and try not to control the deformation by rigid fixation, so as not to increase the welding restraint.

2.采取合理的焊接順序：在焊縫較多的組裝條件下，應(yīng)先焊收縮量較大的焊縫，后焊收縮量較小的焊縫；先焊拘束度較大而不能自由收縮的焊縫，后焊拘束度較小而能自由收縮的焊縫。

2. Adopt reasonable welding sequence: under the assembly condition of more welds, the weld with larger shrinkage should be welded first, and then the weld with smaller shrinkage should be welded; First, weld the weld with larger restraint but not free shrinkage, then weld the weld with smaller restraint but free shrinkage.

3.減小焊縫尺寸：在滿足設(shè)計(jì)要求的條件下，不應(yīng)加大焊縫尺寸和層高，要轉(zhuǎn)變焊縫越大越安 全的觀念。

3. Reduce the weld size: under the condition of meeting the design requirements, the weld size and layer height should not be increased, and the idea that the larger the weld is, the safer it is should be changed.

4.錘擊法減小焊接殘余應(yīng)力：在每層焊道焊完后，立即用圓頭敲渣小錘或電動(dòng)錘擊工具均勻敲擊焊縫金屬，使其產(chǎn)生塑性延伸變形，并抵消焊縫冷卻后承受的局部拉應(yīng)力。

4. Hammering method to reduce welding residual stress: immediately after each layer of weld bead is welded, the round head slag hammer or electric hammering tool shall be used to knock the weld metal evenly, so as to produce plastic extension deformation and offset the local tensile stress of the weld after cooling.

5.采用拋丸機(jī)除銹：通過(guò)鋼丸均勻敲打來(lái)抵消構(gòu)件的焊接應(yīng)力。

5. Shot blasting machine is used to remove rust: the welding stress of components is offset by even tapping of steel shot.

6.降低焊件剛度,創(chuàng)造自由收縮的條件。

6. Reduce the rigidity of weldment and create the condition of free shrinkage.

泰安揚(yáng)帆數(shù)控主要產(chǎn)品有焊接自動(dòng)化成套裝備、數(shù)控切割機(jī)、工業(yè)焊接機(jī)器人和數(shù)字化逆變焊接電源、焊縫跟蹤系統(tǒng)及焊接擺動(dòng)器等，是一家綜合技術(shù)實(shí)力較好的自動(dòng)化、智能化焊接成套裝備的供應(yīng)商。產(chǎn)品廣泛應(yīng)用于國(guó)內(nèi)外機(jī)械制造、化工、汽車配件制造、農(nóng)用機(jī)械、建筑、金屬波紋管、太陽(yáng)能熱水器、電熱水器、不銹鋼制品等多個(gè)領(lǐng)域，在多個(gè)地區(qū)，產(chǎn)品質(zhì)量和性能都受到了用戶的一致好評(píng)。

The main products of Taian Yangfan CNC are complete sets of welding automation equipment, CNC cutting machine, industrial welding robot and digital inverter welding power supply, weld tracking system and welding wiggler, etc. it is a supplier of complete sets of automatic and intelligent welding equipment with better comprehensive technical strength. The products are widely used in machinery manufacturing, chemical industry, auto parts manufacturing, agricultural machinery, construction, metal bellows, solar water heater, electric water heater, stainless steel products and other fields at home and abroad. In many regions, the quality and performance of the products have been well appraised by users.